Example 1 Identifying Slopes and y-intercepts Find the slope and y -intercept of the graph of the equation. ANSWER The line has a slope of 1 and a y -intercept.

Slides:



Advertisements
Similar presentations
EXAMPLE 1 Write an equation of a line from a graph
Advertisements

GONE FISHIN’ with LINEAR EQUATIONS! PLAY!.
Lesson 5.1 Write Equations in Slope-Intercept Form.
Jeopardy Get the Points Intercept That Slope It’s Standard Understanding Slope Graph It $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 Final Jeopardy.
 An equation of a line can be written in slope- intercept form y = mx + b where m is the slope and b is the y- intercept.  The y-intercept is where.
Slope Intercept Form. Slope Intercept Form of an equation gives you a quick way to graph an equation.
Find slope and y-intercept given an equation in standard form. 5.5 day 2 3x - 6y = 12.
WRITING AN EQUATION FROM SLOPE INTERCEPT. Slope Intercept Form.
Slope-Intercept Form Page 22 10/15. Vocabulary y-Intercept: the point at which a function crosses the y-axis (0, y) x-intercept: the point at which a.
11.6 The Slope Intercept Form
Graph linear functions EXAMPLE 1 Graph the equation. Compare the graph with the graph of y = x. a.a. y = 2x b.b. y = x + 3 SOLUTION a.a. The graphs of.
Write an equation given the slope and y-intercept EXAMPLE 1 Write an equation of the line shown.
The slope-intercept form of a linear equation of a non-vertical line is given by: Slope-Intercept Form of a Linear Equation.
WRITING EQUATIONS IN SLOPE-INTERCEPT FORM Standard Form Review.
Directions: Solve the linear systems of equations by graphing. Use the graph paper from the table. Tell whether you think the problems have one solution,
EXAMPLE 1 Solve a quadratic equation having two solutions Solve x 2 – 2x = 3 by graphing. STEP 1 Write the equation in standard form. Write original equation.
The slope-intercept form of a linear equation of a non-vertical line is given by: Slope-Intercept Form of a Linear Equation.
Write decimal as percent. Divide each side by 136. Substitute 51 for a and 136 for b. Write percent equation. Find a percent using the percent equation.
EXAMPLE 3 Write an equation of a line given two points
Aim: Converting linear equations into Slope- Intercept Form Do Now: 1) Define Slope 2) Define y-intercept It’s easier than you think…
Use slope and y-intercept to write an equation
EXAMPLE 1 Write an equation of a line from a graph
Write an equation given two points
Write an equation given the slope and y-intercept EXAMPLE 1 Write an equation of the line shown.
WARM UP Evaluate 1.3x + y for x = 4 and y = 3 2.x² + 7 for x = 7 5 Minutes Remain.
Solve a radical equation
Writing the Equation of a Line
Slope-Intercept Form of a Line
Graph using Slope-Intercept Form A linear equation in the form y=mx+b is written in slope-intercept form where m is the slope and b is the y-intercept.
Substitute 0 for y. Write original equation. To find the x- intercept, substitute 0 for y and solve for x. SOLUTION Find the x- intercept and the y- intercept.
Y=mx+b where m is the slope and b is the y-intercept y=mx+b is the slope intercept form for a linear equation Highest power of a linear equation is 1.
Rewriting an equation in
WARM UP MIXED REVIEW (solve the equation) 1.X + 6 = – y = 4 3.7b = = 3 5.3x – 12 = 6 6. h – 2 = 1 5 Minutes Remain a4a
Substitute 0 for y. Write original equation. To find the x- intercept, substitute 0 for y and solve for x. SOLUTION Find the x- intercept and the y- intercept.
Chapter 5 Test Review White Board Practice 1- point extra credit for every correct answer!
Determine whether (2, 4) is a solution for y= 5x-6.
Writing Equations of a Line. Various Forms of an Equation of a Line. Slope-Intercept Form.
2.4 Essential Questions What is the point-slope form?
Find the x and y intercepts of each graph. Then write the equation of the line. x-intercept: y-intercept: Slope: Equation:
Algebra I CAHSEE Review. Slope-Intercept Form  Graphs 1. Which of the following graphs represents the equation ? A.B. C.D.
X and Y Intercepts.
1.6 Warm Up 1.Find the slope between the points: 1.(9,3) & (-1, -6) _______________ 2.(4, -3) & (0, -3) _______________ 3.(2, 1) & (-5, 8) ________________.
Chapter 5:Write the equation of a line Given Slope & y-Intercept.
EXAMPLE 1 Identifying Slopes and y -intercepts Find the slope and y -intercept of the graph of the equation. a. y = x – 3 b. – 4x + 2y = 16 SOLUTION a.
Find the slope of the line through P(-6,2) and Q(-5,3) m.
5.1 Slope-Intercept Form Day 2. Given the slope and y-intercept, create the equation of the line. 1.Slope = Slope = 1/3 3. Slope = -2/5 y-int =
7.3 – Writing Equations in Slope Intercept Form Objective(s): to write a linear equation in slope-intercept form given the slope and y-intercept Standard(s):
Writing Linear Equations (Slope- Intercept Form).
Slope-Intercept BINGO
Geometry Bellwork 9/30/ – Write and Graph Equations of Lines Linear equations may be written in different forms. The general form of a linear equation.
Point slope form of an equation Y - y₁ = m(X- x₁) (x₁, y₁) An ordered pair on the line m slope.
Point slope form of an equation Y - y₁ = m(X- x₁) (x₁, y₁) An ordered pair on the line m slope.
EXAMPLE 1 Identify slope and y-intercept Identify the slope and y- intercept of the line with the given equation. y = 3x x + y = 22. SOLUTION The.
Example 2 Graphing Using Slope-Intercept Form 1
Quick Graphs Using Slope-Intercept form 4.6 Objective 1 – Graph a linear equation in slope-intercept form.
When an equation is in slope-intercept form: Examples: Identify the slope of the line and the y- intercept for each equation. 1. y = 3x y = ½.
The y-intercept and slope-intercept form/ Writing linear equations from graphs. 1/11/15.
WARM UP GRAPHING LINES Write the equation in slope- intercept form and then Graph. (Lesson 4.7) 1.3x + y = 1 2.x + y = 0 3.y = -4 3.
Linear Functions and Slope
Warm up Write the slope and y-intercept for the following linear functions 1.y = 4x – 6 2.y = -3x y = 4 – 2x 4.y = 1/3x y = -2/3x.
EXAMPLE 2 Determine whether lines are parallel or perpendicular Determine which lines, if any, are parallel or perpendicular. Line a: y = 5x – 3 Line b:
SOLVING LINEAR SYSTEMS by GRAPHING ADV133 Put in slope-intercept form: y = mx + b. y = 4x – 1 y = –x + 4 The solution to a system of linear equations is.
Warm Up Tell whether the system has one solution, no solution, or infinitely many solutions.
4-1 Part 2 Putting Equations in Slope-Intercept Form Notes #_____ ____/____/____.
STANDARD FORM OF A LINEAR EQUATION
3.5 Write and Graph Equations of Lines
Write the equation for the following slope and y-intercept:
EXAMPLE 1 Write an equation of a line from a graph
Objectives: To graph lines using the slope-intercept equation
1: Slope from Equations Y = 8x – 4 B) y = 6 – 7x
Presentation transcript:

Example 1 Identifying Slopes and y-intercepts Find the slope and y -intercept of the graph of the equation. ANSWER The line has a slope of 1 and a y -intercept of –3. a. y = x – 3 b. 4x + 2y = 16 SOLUTION a. The equation y = x – 3 can be written as y = 1x + (–3). –

Example 1 b. Write the equation 4x + 2y = 16 in slope-intercept form. Add 4x to each side. 2y = 4x + 16 Divide each side by 2. y = 2x + 8y = 2x + 8 ANSWER The line has a slope of 2 and a y -intercept of 8. – Write original equation. 4x + 2y = 16 – Identifying Slopes and y-intercepts

Find the slope and y -intercept of the graph of the equation. ANSWER slope: 6 ; y- intercept : 1 3. – 2x + 3y = 6 1. y = 6x y = x 4 1 ANSWER slope: ; y- intercept : ANSWER slope: ; y- intercept : Guided Practice for Example 1